Home / 31,956.20-47,911.66-12,218.12

Finding the Fourth Proportional to 31,956.20, 47,911.66 and 12,218.12

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Solution

The fourth proportional to 31,956.20, 47,911.66 and 12,218.12 is: 18,318.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,956.20 : 47,911.66 = 12,218.12 : x
  2. Step 2: Convert to fraction form
    31,956.20/47,911.66 = 12,218.12/x
  3. Step 3: Cross multiply
    31,956.20x = 47,911.66 × 12,218.12
  4. Step 4: Simplify right side
    31,956.20x = 585,390,411.28
  5. Step 5: Solve for x
    x = 585,390,411.28/31,956.20
  6. Step 6: Final answer
    x = 18,318.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.